What do you do if you are attacked by an insane person?

I will not try to look scary with this kind of person when I encounter him.I felt that if I would let him see I am scared upon seeing him then it could just make him chase me more than what he thinks I was uncomfortable.Then I just seek police assistance so that he would be put to the mental hospital.I must act carefully and plan for my safety and so are the people around my surroundings so that this insane person could not do harm to anyone and be send immediately to the nearby mental hospital.

Well it is one thing to say that you are going to do that, but quite another when you are in the midst of a situation.(Especially if this mentally ill person happens to be carrying a weapon on them). It is best to remain calm if you can, but if you are in a crowded situation(like on a busy street) the best thing to do is make the most amount of noise and struggle as you can. Yelling 'fire' is usually helpful because people look around...yelling 'help' is found to not be successful in situations like this. Take the situation out into the middle of a street then cars have to stop and get involved in the situation. The last thing you want to have happen is to be alone and be put back in an ally or empty parking lot with the person. Also, you should never turn your back because in their mental place it may seem as a threat they must take care of. Have a phone on you at all times and your emergency number on speed dial in case you never run into a situation like this at any time.

Thank you very much for a great advice.I have already done some of your recommendation yet I am very thankful that the insane person was just a calm one that he just look scary yet he is very very calm without any act of violence when we encountered in my way home.